Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5586992 | Dyeing cellulose-containing textile material with hydrogenated indigo | Georg Schnitzer, Franz Suetsch, Michael Schmitt, Erich Kromm, Rudolf Krueger +1 more | 1996-12-24 |
| 5534627 | Polycyclic vat dyes | Udo Bergmann, Michael Schmitt | 1996-07-09 |
| 5484457 | Continuous production of surface dyeings on cellulose fiber textile materials | Joerg Schulze, Kurt Bacher, Wolfgang Schrott, Erich Kromm | 1996-01-16 |
| 4239491 | Dyeing and printing of textiles with disperse dyes | Ulrich Baumgarte, Knut Oppenlaender, Harro Petersen, Norbert Greif, Rainer Strickler | 1980-12-16 |